5656689 has 16 divisors (see below), whose sum is σ = 8745600. Its totient is φ = 3606768.

The previous prime is 5656649. The next prime is 5656691. The reversal of 5656689 is 9866565.

5656689 is a `hidden beast` number, since 5 + 6 + 566 + 89 = 666.

It is not a de Polignac number, because 5656689 - 2¹¹ = 5654641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5656619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3934 + ... + 5175.

It is an arithmetic number, because the mean of its divisors is an integer number (546600).

Almost surely, 2^5656689 is an apocalyptic number.

It is an amenable number.

5656689 is a deficient number, since it is larger than the sum of its proper divisors (3088911).

5656689 is a wasteful number, since it uses less digits than its factorization.

5656689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9141 (or 9135 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 5656689 is about 2378.3794903253. The cubic root of 5656689 is about 178.1780086002.

The spelling of 5656689 in words is "five million, six hundred fifty-six thousand, six hundred eighty-nine".